radical25=5 radical4=2 radical25•radical4=5•2=10 radical(25•4)=radicall100=10
radical4=2 radical16=4 radical4•radical16=2•4=8 radical(4•16)=radical64=8
radical36=6 radical4=2 => 6•2=12(o sa scriu direct asa ca sa nu le mai rescriu, intelegi tu) radical(36•4)=radical144=12
radical36=6 radical9=3 => 6:3=2 radical(36:9)=radical4=2
radical64=8 radical4=2 => 8:2=4 radical(64:4)=radical16=4
radical100=10 radical25=5 => 10:5=2 radical(100:5)=radical20=(descompui)2radical5
